Mitsubishi MELSEC-A Series Reference Manual page 134

6. LlNK DATA SEND/RECEIVE PROCESSING
AND PROCESSING TlME
When a MELSECNET/B data link system is used
(1) In the MELSECNET mode
(2) In the MELSECNET
(3)
(4) K, K
communication speed of MELSECNET/B data link system. Find them from the
following.
Communication
speed setting
(5) By calculating the total number of link points (bytes) and from one of the graphs 1) to
4) on the next page, obtain a K
mode
In the MELSECNET composite mode
and K values in the calculation expression vary depending on the
L R
Constant
(BPS)
K
125K K
L
K
R
K
250K K
L
K
R
K
500K K
L
K
R
K
1M K
L
K
R
MELSECNET mode MELSECNET
MELSECNET MELSECNET
Operating Mode
mode
mode
Applicability
Total number of slave station
1 to 8 9 to 16
6.7 7.2
3.8 3.8
3.9 3.9
5.8 6.3
3.1 3.1
3.1 3.2
5.8 6.3
2.7 2.7
2.9 2.9
5.8 6.3
2.6 2.6
2.8 2.8
value used for the calculation expression.
B
6 - 17
MELSECNET/B
MELSECNET
MELSECNET MELSECNET MELSECNET
composite mode mode mode composite mode
17 to 24 25 to 31
7.7 8.2
3.9 3.9
4.0 4.0
6.8 7.3
3.2 3.2
3.3 3.3
6.8 7.3
2.8 2.8
3.0 3.0
6.8 7.3
2.7 2.7
2.9 2.9